Nut-lock.



. hwooea .No. 896,883. PATENTED AUG. 25.1908. I J. J. BAILEY.

NUT LOCK.

APPLIOATION FILED NOV. 19, 1907.

Jmirzas J flaky UITED s'rarns PAT NT onnronf.

JAMES J. BAILEY, or nousron, TEXAS.

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Specification of Letters Patent.

- 'Patented Aug. 25,1908.

Application filed November 1.9, 1907. Serial No.402,891.

T 0 all whom it may concern:

Be it known that I, JAMES J. BAILEY, a

citizen of the United States, residing at Houston, in the county ofHarris and State of Texas, have invented new and useful Imrovements inNut-Locks, of which the folowing is a specification. This inventionrelates to nut locks, the object of the invention being to provide anut.

lock applicable to any bolt of the proper size, any alteration necessarybeing formation in the bolt or an end slide or. groove to receive acorresponding part of the locking device,

the said locking device not only serving tohereinafter fully described,illustrated and claimed.- A

y In theaccompanying drawings, Figure 1 is a side elevation of a boltwith the improved nut lock applied thereto. Fi 2 is a plan view of thenut lock per se. h ig. is a sec-. tional elevation of the bolt andnutshowing the relation of the locking device thereto. Fig. 4 is aperspective view of the nut lock detached. Fig. 5 illustrates the nutand grooved end of the bolt in perspective.

Referring to the drawings, 1 designates a bolt which for the purpose ofthis invention is provided in its threaded-extremity with an end grooveor slot 2 which preferably extends diametricallyacross the end of theboltand is of suitable breadth to receive the ton ue of the lockingdevice hereinafter describe i In ,all other respects, thebolt .issimilar to the common threaded bolt now in use belng'prospondingshoulders ,or teeth on ,thelocking vided with the threaded portion 3 andhead 4.

The nut 5 is provided on one side with a plurality of notches 6 forminga corresponding number of shoulders orteeth 7, the active surfaces ofwhich are perpendicular to the surface of the nut, while the surfacesleading upwa': 11 thereto are inclined so that the correwhat is c aimedas new 1s:---

device hereinafter described will ride upwar on the teeth and sue overthe same into engagement with the s oulders thereof.

The locking device consists of a strip of spring metal. which is bentintermediate its ends to forma recurved spring portion or bend 8. Theextremities of 'the strip are somewhat enlarged as illustrated in F1gs.2 and 4, one of said extremities 9 being provided with .a central boltreceiving hole 10,

was er and being adapted to take the place of the usual washer used onbolts. The other end of the locking device is made somewhat thicker inorder to adapt the same to be notched as shown at 11, thereby providinga.

plurality of locking shoulders 12 correspond. mg in number with theshoulders 7 of the nut, the notches bein so shaped as to provideinclined surfaces 1% the abrupt shoulders 12 thereby enabling theshoulders of the locking deviceto ride over and snap into engagementwith the shoulders of the nut. The enlarged end portion the 1portion 9of the locking device forming a which leadinward toward 14 of the nutlock is further provided with a' bolt receiving hole 15 across whichextends an integral locking tongue 16 .which, when the locking device isin osition, sna s into engagement .Withthe end groove or s 0t 2 in theextremity of the bolt.

The locking device is threaded end of the bolt with the nut lyingbetween the extremities of the locking device in the manner illustratedin Figs. 1 and laced over i the 2. Then by means of an S wrench orothersuitable implement the nut is turned inward on the bolt to the desiredextent, bringing the washer portion 9 of the locking device againstthesurface of the object through which the bolt asses. In turning the nut,the shoulders of the nut ride over and snap past the shoulders of thespring locking de viceand when the nut reaches its final po- 'sition thetongue 16 of the locking device springs or snaps into the terminalgroove.

01' slot 2 and thus the locking device is held from turning on the boltand the nut is also held from turning on the bolt by reason of itsinterlocked engagement with the vice. r

Havin thus fully described the invention,

' The combinationrwithia b'olt having a dialocking de-' metrical slot inthe end thereof, and a nut l more shoulders to engage the "shoulders ofprovided with shoulders on its outer face, of the nut.; t 10 a nut lockcomprising a recurved spring body, In testimony whereof I afibc mysignature and terminal portions bearing against the in presence of twowitnesses.

opposite faces of the nut and provided with JAMES J. BAILEY.

holes for the bolt, one-of said terminal-p01" Witnesses:

ti'ons having an integral cros v bar to engage HENRY F. BAILEY, thediametrieal slot 1n the bolt and one or l JOHN W. MoGmNIs

